[ICEM] Questions about Hexa Meshing

m5edr · June 17, 2013, 17:26

Hi Experts,

I have some questions about Hexa Meshing of My problem (one blade inside huge sector of 120° (three bladed turbine) , theses questions my be primitive because i'm beginner in HexaMeshing and Blocking techniques

1- Is iam meshing the huge 120 degree volume (using quarter O-grid) and improve its quality firstly then start with blade OR start with blade then the huge volume ?

2- For the attached Figure 1 , why the all volume (or surface) not meshed

3- Why the color of o-grid Blocks in my ICEM is (red) while in all tutorials are (green) .. Figure 2, is it setting adjusting or i miss some thing?

diamondx · June 17, 2013, 17:32

You have a problem with your associations. right button click on edges then select "show associations" so you can detect which edge is associated with which curve. your problem is more likely to happen if you have two curve and you tought of them as one

m5edr · June 17, 2013, 17:45

Quote:

Originally Posted by diamondx

You have a problem with your associations. right button click on edges then select "show associations" so you can detect which edge is associated with which curve. your problem is more likely to happen if you have two curve and you tought of them as one

Thanks diamondxfor replay , now i understand this

Could i ask you to review my first and third inquiry?

Thanks in advance

diamondx · June 17, 2013, 18:05

color of block does not really matter, if you right button click on parts-»good color"", it will change i think

kad · June 17, 2013, 19:04

The color of the blocks is very similar to the color of some part of your surface mesh. Maybe they are in the same part. Did you create a material point like "FLUID" ? If not, you have to. Otherwise you will get problems later. Normally blocks are assigned to the part of the material point automatically.

June 17, 2013, 17:32		#2
diamondx Super Moderator Ghazlani M. Ali Join Date: May 2011 Location: Tokyo, Japan Posts: 1,385 Blog Entries: 23 Rep Power: 29	You have a problem with your associations. right button click on edges then select "show associations" so you can detect which edge is associated with which curve. your problem is more likely to happen if you have two curve and you tought of them as one __________________ Regards, New to ICEM CFD, try this document --> https://goo.gl/KAOIwm Ali

June 17, 2013, 18:05		#4
diamondx Super Moderator Ghazlani M. Ali Join Date: May 2011 Location: Tokyo, Japan Posts: 1,385 Blog Entries: 23 Rep Power: 29	color of block does not really matter, if you right button click on parts-»good color"", it will change i think __________________ Regards, New to ICEM CFD, try this document --> https://goo.gl/KAOIwm Ali

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June 17, 2013, 19:04		#5
kad Senior Member Join Date: Feb 2013 Location: Germany Posts: 200 Rep Power: 24	The color of the blocks is very similar to the color of some part of your surface mesh. Maybe they are in the same part. Did you create a material point like "FLUID" ? If not, you have to. Otherwise you will get problems later. Normally blocks are assigned to the part of the material point automatically.